This USB timer switch cable is crafted to meet the needs of aquarium enthusiasts who require lighting control. Its adjustable countdown timer ensures that lights turn off automatically, preventing overexposure. The cable is suitable for fish tanks, terrariums, and other indoor environments requiring timed lighting solution. Features -Color:Black -Material:Plastic -Size:40.00X3.50X2.80cm/15.72X1.38X1.10in -24-hour timing precision: set any power-off time in a 24-hour window to ensure the safety of your electrical appliances and avoid excessive energy use -Multidevice usb compatibility: the usb interface design is compatible with various devices, making it suitable for fish tanks, aquariums, and other timed control scenarios -Effortless adjustment: features a userfriendly interface with no complex setup required, allowing for auto timing with a single button press -Energy efficiency: helps reduce energy waste by accurately controlling the operating time of your devices, ideal for homes and offices -Dependable operation: provides stable and performance over long periods, minimizing maintenance needs and suitable for various indoor automation applications Package list: 1 x timer switch